EP0648316A1 - Sprung retainer system. - Google Patents

Sprung retainer system.

Info

Publication number
EP0648316A1
EP0648316A1 EP93913120A EP93913120A EP0648316A1 EP 0648316 A1 EP0648316 A1 EP 0648316A1 EP 93913120 A EP93913120 A EP 93913120A EP 93913120 A EP93913120 A EP 93913120A EP 0648316 A1 EP0648316 A1 EP 0648316A1
Authority
EP
European Patent Office
Prior art keywords
key
housing
yoke
spring wire
common axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93913120A
Other languages
German (de)
French (fr)
Other versions
EP0648316B1 (en
Inventor
Deit Gerard Le
Claude Hulliger
Jean-Louis Gerard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AlliedSignal Europe Services Techniques
Original Assignee
AlliedSignal Europe Services Techniques
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AlliedSignal Europe Services Techniques filed Critical AlliedSignal Europe Services Techniques
Publication of EP0648316A1 publication Critical patent/EP0648316A1/en
Application granted granted Critical
Publication of EP0648316B1 publication Critical patent/EP0648316B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
    • F16D65/0975—Springs made from wire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F16D55/2265—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
    • E05C5/02—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively both moving axially and turning about their axis to secure the wing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/005—Components of axially engaging brakes not otherwise provided for
    • F16D65/0087—Brake housing guide members, e.g. caliper pins; Accessories therefor, e.g. dust boots

Definitions

  • the present invention relates to a device for connecting a first and a second part, comprising first and second housings with a common axis respectively formed in these first and second parts, and a key inserted axially in the first housing with a relatively small clearance and in the second housing with a relatively large clearance.
  • the object of the present invention is precisely to avoid this phenomenon and to eliminate the effects for which it is responsible.
  • the device of the invention is essentially characterized in that the second housing and the key adopt at least partially the form of cylinders with non-circular bases each of which has different minimum and maximum diameters, the diameters of the second housing being greater than the corresponding diameters of the key and the maximum diameter thereof being greater than the minimum diameter of the second housing, and in that this device also comprises a holding member, pressing on one of the two parts and exerting on the key an elastic torque of twist around said common axis, tending to align the maximum diameter of the key and the diameter minimum of the second accommodation.
  • the holding member is preferably constituted by a spring wire made integral with the key and the yoke respectively at first and second fixing points spaced from each other by a length portion of this wire, and this length portion extends at least partially in a direction different from that of said common axis to be subjected to a bending during a sliding of Tétrier resulting from a braking action, and thus being able to bring the latter back to the end of this action.
  • the first fixing point is obtained by the introduction of the spring wire into a transverse bore formed in the key.
  • the spring wire is bent at the exit of the transverse bore at an angle such that the sliding of the caliper causes a rotation of the spring wire in the bore, then the spring wire is advantageously supported on the yoke at a point of rotation located , along the length of this wire, between the first and second attachment points, and the second attachment point is located at a distance from the plane formed by said common axis and said point of rotation.
  • FIG. 1 is a top view of a sliding caliper disc brake using a device according to the invention
  • FIG. 1 is a front view of the brake of Figure 1;
  • FIG. 3 is a detailed sectional view taken along line III-III of Figure 1;
  • Figure 4 is a view similar to that of Figure 3, made on an enlarged scale and according to a slightly different section plane, and representing a key also slightly different section.
  • the disc brake shown in Figures 1 and 2 is of the type comprising a yoke 1 and a stirrup 2 slidingly mounted on this yoke by means of an axial baluster 3.
  • a hydraulic brake motor 4 integral with Tétrier 2 is capable of applying to a disc (not shown), integral with a wheel of a vehicle to be braked, two friction members 5 and 6 mounted on the brake by means of respective support plates 5a and 6a.
  • the yoke 1 and Tétrier 2 which are capable of rotating relative to each other around the column 3 forming a hinge, are made integral with one another in rotation by means of a key 7 engaged according to an axis 8 in at least one housing 9 of the yoke 1 and a housing 10 of Tétrier 2.
  • the object of the invention is in particular to prevent the necessarily large clearance between the key 7 and the housing 10 from becoming, under extreme conditions, a source of noise and a cause of wear.
  • the second housing 10 and the key 7 adopt, at least in their mutual vicinity, the form of cylinders with non-circular bases, each of which has different minimum and maximum diameters.
  • minimum diameter is understood here to mean, for each element considered (namely the key 7 on the one hand and the housing 10 on the other hand), the minimum distance that these two parallel lines can present while by remaining tangent to the section of this element, associated with the direction that these two lines take when they are at this distance Tune from the other.
  • maximum diameter can be extrapolated from the previous one.
  • the minimum and maximum diameters of the second housing 10 are respectively greater than the minimum and maximum diameters of the key 7, but the maximum diameter of the latter is greater than the minimum diameter of the second housing 10.
  • the key 7 can for example take the form of a cylinder with a circular base modified by two parallel flats 7a and 7b, and the housing 10 can be of essentially rectangular shape and possibly open.
  • the device of the invention also comprises a holding member adopting for example the shape of a spring wire 11 inserted in a transverse bore 7c of the key 7, the insertion point constituting a first attachment point 11a for the wire spring 11.
  • This wire 11 which rests on the yoke at a second fixing point 11b, has the function of exerting on the key 7 an elastic torque, identified by the arrow C, around Common tax 8, tending to align the maximum diameter DM of the key 7 with the minimum diameter of the second housing, which has the direction of the width of the rectangle that the latter forms.
  • 11b extends at least partially in a direction different from that of Tax 8, in order to be able to be subjected to a bending during the sliding of Tétrier 2 under the effect of a braking action, and thus to be able to bring Tétrier to the vicinity at least from its starting position after the end of the braking action.
  • the spring wire 11 is for example bent at the outlet of the bore 7c and is further supported ( Figures 1 and 3) on a point of rotation la which is formed by a relief of the yoke 1 and is located, along the length of the wire 11, between the first and second attachment points 11a, 11b.
  • the spring wire 11 preferably attacks the second fixing point 11b by means of a loop, so that this second fixing point is located at a distance from the plane passing through Taxe 8 and the point of rotation la , which allows a slight biasing of the spring wire 11 in torsion and increases the capacity of this wire to return the caliper to its position after sliding on the baluster 3.
  • the key 7 may advantageously have a more advanced section than that of a segment of a circle and in particular devoid of angular points.

Abstract

A system for connecting two parts (1, 2) by means of a pin (7) positioned axially in recesses in said parts. The pin (7) and one of the recesses (10) have a non-circular cross section, and the pin (7) is held by the force of a spring wire (11) to reduce its play in said recess (10).

Description

DISPOSITIF DE LIAISON A RAPPEL ELASTIQUE ELASTIC RECALL LINK DEVICE
La présente invention concerne un dispositif de liaison d'une première et d'une seconde pièce, comprenant des premier et second logements d'axe commun respecti ement formés dans ces première et seconde pièces, ainsi qu'une clavette insérée axiale ent dans le premier logement avec un jeu relativement faible et dans le second logement avec un jeu relativement important.The present invention relates to a device for connecting a first and a second part, comprising first and second housings with a common axis respectively formed in these first and second parts, and a key inserted axially in the first housing with a relatively small clearance and in the second housing with a relatively large clearance.
Des dispositifs de ce type sont utilisés depuis très longtemps en mécanique et dans tous les domaines de l'industrie.Devices of this type have been used for a very long time in mechanics and in all areas of industry.
Un exemple particulier en est donné par le brevet US 4 936422 qui concerne un frein à disque à étrier coulissant et à colonnette unique, et qui illustre le domaine d'application privilégié de la présente invention.A particular example is given by US Pat. No. 4,936,422 which relates to a disc brake with a sliding caliper and a single baluster, and which illustrates the preferred field of application of the present invention.
Lorsqu'il s'agit de rendre solidaires Tune de l'autre deux pièces telles que la chape et 1 'étrier coulissant d'un frein à disque, il est en effet nécessaire, en raison des tolérances de fabrication, de prévoir que la clavette rentre avec un jeu relativement important dans l'une des deux pièces, faute de quoi l'assemblage risque d'être impossible.When it comes to making one piece of the other two pieces such as the yoke and the sliding caliper of a disc brake, it is indeed necessary, because of manufacturing tolerances, to provide that the key fits with a relatively large clearance in one of the two parts, otherwise the assembly may be impossible.
Néanmoins dans certaines applications, et en particulier dans le cas de freins aussi assemblés et soumis à des conditions d'utilisation extrêmes, le jeu entre la clavette et la seconde pièce, donc entre les deux pièces, est générateur de bruit et fait apparaître un risque d'usure prématurée résultant, aux accélérations importantes et de sens alternés, d'un martèlement des deux pièces l'une contre l'autre.However in certain applications, and in particular in the case of brakes also assembled and subjected to extreme conditions of use, the play between the key and the second part, therefore between the two parts, generates noise and makes a risk appear. premature wear resulting from significant acceleration and alternating directions, from a hammering of the two parts against each other.
Le but de la présente invention est précisément d'éviter ce phénomène et d'éliminer les effets dont il est responsable.The object of the present invention is precisely to avoid this phenomenon and to eliminate the effects for which it is responsible.
A cette fin, le dispositif de l'invention est essentiellement caractérisé en ce que le second logement et la clavette adoptant au moins partiellement la forme de cylindres à bases non circulaires dont chacun présente des diamètres minimal et maximal différents, les diamètres du second logement étant supérieurs aux diamètres correspondants de la clavette et le diamètre maximal de celle-ci étant supérieur au diamètre minimal du second logement, et en ce que ce dispositif comprend en outre un organe de maintien, s'appuyant sur l'une des deux pièces et exerçant sur la clavette un couple élastique de torsion autour dudit axe commun, tendant à aligner le diamètre maximal de la clavette et le diamètre minimal du second logement.To this end, the device of the invention is essentially characterized in that the second housing and the key adopt at least partially the form of cylinders with non-circular bases each of which has different minimum and maximum diameters, the diameters of the second housing being greater than the corresponding diameters of the key and the maximum diameter thereof being greater than the minimum diameter of the second housing, and in that this device also comprises a holding member, pressing on one of the two parts and exerting on the key an elastic torque of twist around said common axis, tending to align the maximum diameter of the key and the diameter minimum of the second accommodation.
Dans le cas où les première et seconde pièces sont respectivement constituées par la chape et Tétrier d'un frein à disque à étrier coulissant, l'organe de maintien est de préférence constitué par un fil ressort rendu solidaire de la clavette et de la chape respectivement en des premier et second points de fixation espacés l'un de l'autre par une portion de longueur de ce fil, et cette portion de longueur s'étend au moins partiellement suivant une direction différente de celle dudit axe commun pour être soumise à une flexion lors d'un coulissement de Tétrier résultant d'une action de freinage, et pouvoir ainsi ramener ce dernier à la fin de cette action.In the case where the first and second parts are respectively constituted by the yoke and the caliper of a disc brake with sliding caliper, the holding member is preferably constituted by a spring wire made integral with the key and the yoke respectively at first and second fixing points spaced from each other by a length portion of this wire, and this length portion extends at least partially in a direction different from that of said common axis to be subjected to a bending during a sliding of Tétrier resulting from a braking action, and thus being able to bring the latter back to the end of this action.
Selon un mode de réalisation facile à mettre en oeuvre, le premier point de fixation est obtenu par l'introduction du fil ressort dans un alésage transversal pratiqué dans la clavette.According to an embodiment which is easy to implement, the first fixing point is obtained by the introduction of the spring wire into a transverse bore formed in the key.
Si le fil ressort est coudé à la sortie de l'alésage transversal suivant un angle tel que le coulissement de Tétrier provoque une rotation du fil ressort dans l'alésage, alors le fil ressort est avantageusement appuyé sur la chape en un point de rotation situé, suivant la longueur de ce fil, entre les premier et second points de fixation, et le second point de fixation est situé à distance du plan formé par ledit axe commun et ledit point de rotation.If the spring wire is bent at the exit of the transverse bore at an angle such that the sliding of the caliper causes a rotation of the spring wire in the bore, then the spring wire is advantageously supported on the yoke at a point of rotation located , along the length of this wire, between the first and second attachment points, and the second attachment point is located at a distance from the plane formed by said common axis and said point of rotation.
D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence au dessin annexé dans lequel :Other characteristics and advantages of the invention will emerge clearly from the description which is given below, for information and in no way limitative, with reference to the appended drawing in which:
- La Figure 1 est une vue de dessus d'un frein à disque à étrier coulissant utilisant un dispositif conforme à l'invention ;- Figure 1 is a top view of a sliding caliper disc brake using a device according to the invention;
- La Figure 2 est une vue de face du frein de la Figure 1 ;- Figure 2 is a front view of the brake of Figure 1;
- La Figure 3 est une vue de détail en coupe réalisée suivant la ligne III-III de la Figure 1 ; et- Figure 3 is a detailed sectional view taken along line III-III of Figure 1; and
- La Figure 4 est une vue semblable à celle de la Figure 3, réalisée à une échelle agrandie et suivant un plan de coupé légèrement différent, et représentant une clavette de section également légèrement différente.- Figure 4 is a view similar to that of Figure 3, made on an enlarged scale and according to a slightly different section plane, and representing a key also slightly different section.
Le frein à disque représenté aux Figures 1 et 2 est du type comportant une chape 1 et un étrier 2 monté coulissant sur cette chape au moyen d'une colonnette axiale 3.The disc brake shown in Figures 1 and 2 is of the type comprising a yoke 1 and a stirrup 2 slidingly mounted on this yoke by means of an axial baluster 3.
Un moteur hydraulique de frein 4, solidaire de Tétrier 2 est susceptible d'appliquer sur un disque (non représenté), solidaire d'une roue d'un véhicule à freiner, deux organes de friction 5 et 6 montés sur le frein au moyen de plaques support respectives 5a et 6a.A hydraulic brake motor 4, integral with Tétrier 2, is capable of applying to a disc (not shown), integral with a wheel of a vehicle to be braked, two friction members 5 and 6 mounted on the brake by means of respective support plates 5a and 6a.
La chape 1 et Tétrier 2, qui sont susceptibles de tourner l'un par rapport à l'autre autour de la colonnette 3 formant charnière, sont rendus solidaires l'un de l'autre en rotation au moyen d'une clavette 7 engagée suivant un axe 8 dans au moins un logement 9 de la chape 1 et un logement 10 de Tétrier 2.The yoke 1 and Tétrier 2, which are capable of rotating relative to each other around the column 3 forming a hinge, are made integral with one another in rotation by means of a key 7 engaged according to an axis 8 in at least one housing 9 of the yoke 1 and a housing 10 of Tétrier 2.
Alors que le jeu de la clavette 7 dans le premier logement 9 est infime, le jeu de cette clavette dans le logement 10 de Tétrier est relativement important de manière notamment à rattraper les tolérances de fabrication du frein et ses déformations sous contrainte.While the play of the key 7 in the first housing 9 is minute, the play of this key in the housing 10 of Tétrier is relatively large so as in particular to catch up with the manufacturing tolerances of the brake and its deformations under stress.
L'invention a notamment pour but d'éviter que le jeu nécessairement important entre la clavette 7 et le logement 10 devienne, dans des conditions extrêmes, source de bruit et cause d'usure.The object of the invention is in particular to prevent the necessarily large clearance between the key 7 and the housing 10 from becoming, under extreme conditions, a source of noise and a cause of wear.
Les moyens mis en oeuvre par l'invention pour résoudre ce problème sont illustrés de façon spécifique par les Figures 3 et 4.The means used by the invention to solve this problem are specifically illustrated in Figures 3 and 4.
Plus précisément, le second logement 10 et la clavette 7 adoptent, au moins à leur voisinage mutuel, la forme de cylindres à bases non circulaires, dont chacun présente des diamètres minimal et maximal différents.More specifically, the second housing 10 and the key 7 adopt, at least in their mutual vicinity, the form of cylinders with non-circular bases, each of which has different minimum and maximum diameters.
En d'autres termes, non seulement leur section adopte une forme non circulaire, mais en outre deux droites parallèles tangentes à cette section présentent entre elles un écartement qui varie en fonction de leur direction.In other words, not only does their section adopt a non-circular shape, but also two parallel lines tangent to this section have a spacing between them which varies according to their direction.
De ce fait, on entend ici par "diamètre minimal", pour chaque élément considéré (à savoir la clavette 7 d'une part et le logement 10 d'autre part), la distance minimale que peuvent présenter entre elles ces deux droites parallèles tout en restant tangentes à la section de cet élément, associée à la direction que prennent ces deux droites lorsqu'elles sont à cette distance Tune de l'autre. Comme on le comprendra aisément, la définition de "diamètre maximal" peut être extrapolée de la précédente.For this reason, the term “minimum diameter” is understood here to mean, for each element considered (namely the key 7 on the one hand and the housing 10 on the other hand), the minimum distance that these two parallel lines can present while by remaining tangent to the section of this element, associated with the direction that these two lines take when they are at this distance Tune from the other. As will be readily understood, the definition of "maximum diameter" can be extrapolated from the previous one.
Selon l'invention, les diamètres minimal et maximal du second logement 10 sont respectivement supérieurs aux diamètres minimal et maximal de la clavette 7, mais le diamètre maximal de celle-ci est supérieur au diamètre minimal du second logement 10.According to the invention, the minimum and maximum diameters of the second housing 10 are respectively greater than the minimum and maximum diameters of the key 7, but the maximum diameter of the latter is greater than the minimum diameter of the second housing 10.
Comme le montrent les Figures 1 et 3, la clavette 7 peut par exemple adopter la forme d'un cylindre à base circulaire modifié par deux méplats parallèles 7a et 7b, et le logement 10 peut être de forme essentiellement rectangulaire et éventuellement ouvert.As shown in Figures 1 and 3, the key 7 can for example take the form of a cylinder with a circular base modified by two parallel flats 7a and 7b, and the housing 10 can be of essentially rectangular shape and possibly open.
Le dispositif de l'invention comprend par ailleurs un organe de maintien adoptant par exemple la forme d'un fil ressort 11 inséré dans un alésage transversal 7c de la clavette 7, le point d'insertion constituant un premier point de fixation lia pour le fil ressort 11.The device of the invention also comprises a holding member adopting for example the shape of a spring wire 11 inserted in a transverse bore 7c of the key 7, the insertion point constituting a first attachment point 11a for the wire spring 11.
Ce fil 11, qui s'appuie sur la chape en un second point de fixation 11b, a pour fonction d'exercer sur la clavette 7 un couple élastique de torsion, repéré par la flèche C, autour de Taxe commun 8, tendant à aligner le diamètre maximal DM de la clavette 7 avec le diamètre minimal du second logement, qui a la direction de la largeur du rectangle que forme ce dernier.This wire 11, which rests on the yoke at a second fixing point 11b, has the function of exerting on the key 7 an elastic torque, identified by the arrow C, around Common tax 8, tending to align the maximum diameter DM of the key 7 with the minimum diameter of the second housing, which has the direction of the width of the rectangle that the latter forms.
Selon une autre caractéristique importante de l'invention, la portion de la longueur du fil 11 qui sépare les points de fixation lia etAccording to another important characteristic of the invention, the portion of the length of the wire 11 which separates the attachment points 11a and
11b s'étend au moins partiellement suivant une direction différente de celle de Taxe 8, pour pouvoir être soumise à une flexion lors du coulissement de Tétrier 2 sous l'effet d'une action de freinage, et pouvoir ainsi ramener Tétrier au voisinage au moins de sa position de départ après la fin de l'action de freinage.11b extends at least partially in a direction different from that of Tax 8, in order to be able to be subjected to a bending during the sliding of Tétrier 2 under the effect of a braking action, and thus to be able to bring Tétrier to the vicinity at least from its starting position after the end of the braking action.
Comme le montrent les Figures 3 et 4, le fil ressort 11 est par exemple coudé à la sortie de l'alésage 7c et s'appuie en outre (Figures 1 et 3) sur un point de rotation la qui est formé par un relief de la chape 1 et se trouve situé, suivant la longueur du fil 11, entre les premier et second points de fixation lia, 11b.As shown in Figures 3 and 4, the spring wire 11 is for example bent at the outlet of the bore 7c and is further supported (Figures 1 and 3) on a point of rotation la which is formed by a relief of the yoke 1 and is located, along the length of the wire 11, between the first and second attachment points 11a, 11b.
Par ailleurs, le fil ressort 11 attaque de préférence le second point de fixation 11b par l'intermédiaire d'une boucle lie, de sorte que ce second point de fixation est situé à distance du plan passant par Taxe 8 et le point de rotation la, ce qui permet une légère sollicitation du fil ressort 11 en torsion et augmente la capacité de ce fil à ramener Tétrier en position après un coulissement sur la colonnette 3.Furthermore, the spring wire 11 preferably attacks the second fixing point 11b by means of a loop, so that this second fixing point is located at a distance from the plane passing through Taxe 8 and the point of rotation la , which allows a slight biasing of the spring wire 11 in torsion and increases the capacity of this wire to return the caliper to its position after sliding on the baluster 3.
Enfin, comme le montre la Figure 4, la clavette 7 peut avantageusement présenter une section plus évoluée que celle d'un segment de cercle et notamment dépourvue de points anguleux. Finally, as shown in Figure 4, the key 7 may advantageously have a more advanced section than that of a segment of a circle and in particular devoid of angular points.

Claims

REVENDICATIONS
1. Dispositif de liaison d'une chape (1) et d'un étrier (2) d'un frein à disque à étrier coulissant, comprenant des premier et second logements (9, 10) d'axe commun (8) respectivement formés dans la chape (1) et Tétrier (2), une clavette (7) insérée axialement dans le premier logement avec un jeu relativement faible et dans le second logement avec un jeu relativement important, et un organe de maintien (11) de la clavette (7) en fil ressort caractérisé en ce que le second logement et la clavette adoptent au moins partiellement la forme de cylindres à bases non circulaires dont chacun présente des diamètres minimal et maximal différents, les diamètres du second logement étant supérieurs aux diamètres correspondants de la clavette et le diamètre maximal (DM) de celle-ci étant supérieur au diamètre minimal du second logement, l'organe de maintien (11), s'appuyant en deux points (11b, la) sur Tune des deux pièces et exerçant sur la clavette un couple élastique de torsion autour dudit axe commun, tendant à aligner le diamètre maximal (DM) de la clavette et le diamètre minimal du second logement.1. Device for connecting a yoke (1) and a caliper (2) of a sliding caliper disc brake, comprising first and second housings (9, 10) of common axis (8) respectively formed in the yoke (1) and Tétrier (2), a key (7) inserted axially in the first housing with a relatively small clearance and in the second housing with a relatively large clearance, and a holding member (11) of the key (7) in spring wire characterized in that the second housing and the key adopt at least partially the form of cylinders with non-circular bases each of which has different minimum and maximum diameters, the diameters of the second housing being greater than the corresponding diameters of the key and the maximum diameter (DM) thereof being greater than the minimum diameter of the second housing, the holding member (11), pressing at two points (11b, la) on one of the two parts and exerting on the key an elastic couple of t orsion around said common axis, tending to align the maximum diameter (DM) of the key and the minimum diameter of the second housing.
2. Dispositif de liaison suivant la revendication 1, caractérisé en ce que le fil ressort (11) est rendu solidaire de la clavette et de la chape respectivement en des premier et second points de fixation (lia, 11b) espacés l'un de l'autre par une portion de longueur de ce fil s'étendant au moins partiellement suivant une direction différente de celle dudit axe commun (8) pour être soumise à une flexion lors d'un coulissement de Tétrier résultant d'une action de freinage, et pouvoir ainsi ramener ce dernier à la fin de cette action.2. Connecting device according to claim 1, characterized in that the spring wire (11) is made integral with the key and the yoke respectively in first and second fixing points (lia, 11b) spaced one of the 'other by a portion of length of this wire extending at least partially in a direction different from that of said common axis (8) so as to be subjected to bending during sliding of the stirrup resulting from a braking action, and being able to bring the latter back to the end of this action.
3. Dispositif suivant la revendication 2, caractérisé en ce que le premier point de fixation (lia) est obtenu par l'introduction du fil ressort dans un alésage transversal (7c) pratiqué dans la clavette.3. Device according to claim 2, characterized in that the first fixing point (lia) is obtained by the introduction of the spring wire in a transverse bore (7c) formed in the key.
4. Dispositif suivant la revendication 3, caractérisé en ce que le fil ressort est coudé à la sortie dudit alésage transversal, en ce qu'il est appuyé sur la chape en un point de rotation (la) situé, suivant la longueur de ce fil, entre les premier et second points de fixation, et en ce que le second point de fixation est situé à distance du plan formé par le dit axe commun et ledit point de rotation. 4. Device according to claim 3, characterized in that the spring wire is bent at the outlet of said transverse bore, in that it is supported on the yoke at a point of rotation (la) located along the length of this wire , between the first and second attachment points, and in that the second attachment point is located at a distance from the plane formed by said common axis and said point of rotation.
EP93913120A 1992-07-08 1993-06-14 Spring retainer system Expired - Lifetime EP0648316B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR929208421A FR2693570B1 (en) 1992-07-08 1992-07-08 Elastic return linkage device.
FR9208421 1992-07-08
PCT/FR1993/000564 WO1994001694A1 (en) 1992-07-08 1993-06-14 Sprung retainer system

Publications (2)

Publication Number Publication Date
EP0648316A1 true EP0648316A1 (en) 1995-04-19
EP0648316B1 EP0648316B1 (en) 1996-03-13

Family

ID=9431674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93913120A Expired - Lifetime EP0648316B1 (en) 1992-07-08 1993-06-14 Spring retainer system

Country Status (10)

Country Link
US (1) US5494139A (en)
EP (1) EP0648316B1 (en)
JP (1) JPH07508820A (en)
KR (1) KR950702288A (en)
BR (1) BR9306508A (en)
DE (1) DE69301824T2 (en)
ES (1) ES2087748T3 (en)
FR (1) FR2693570B1 (en)
RU (1) RU95105535A (en)
WO (1) WO1994001694A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29520736U1 (en) * 1995-11-17 1996-03-07 Innovative Pyrotechnik Gmbh Device for fogging rooms
US6920965B2 (en) * 2000-10-18 2005-07-26 Continental Teves Ag & Co. Ohg Spot-type disc brake with a spring assembly for a brake pad
US6755233B2 (en) 2002-11-05 2004-06-29 Haldex Brake Corporation Method and apparatus for positioning an end of a push rod of a brake actuator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR687615A (en) * 1930-01-03 1930-08-11 Lock
US3268034A (en) * 1962-05-07 1966-08-23 Bendix Corp Spot type disc brake
US3196549A (en) * 1962-11-28 1965-07-27 Arthur H Alexander Segment type locating pin
GB1359989A (en) * 1970-12-10 1974-07-17 Gen Motors France Disc brake assembly
FR2142248A5 (en) * 1971-06-18 1973-01-26 Dba
JPS5327770A (en) * 1976-08-27 1978-03-15 Toyota Motor Corp Disc brake
DE2820218A1 (en) * 1978-05-09 1979-11-15 Springfix Befestigungstechnik FASTENING ELEMENT FOR THE RELEASABLE CONNECTION OF TWO PLATE-LIKE COMPONENTS
DE2851590A1 (en) * 1978-11-29 1980-06-12 Teves Gmbh Alfred Disc brake saddle hole casing - receives impetus from adjustment spring on saddle with spring force equalling or being under frictional force between caliper and casing
FR2635842B1 (en) * 1988-08-29 1990-10-19 Bendix France DISC BRAKE SPRING AND DISC BRAKE COMPRISING SAME

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9401694A1 *

Also Published As

Publication number Publication date
JPH07508820A (en) 1995-09-28
FR2693570A1 (en) 1994-01-14
KR950702288A (en) 1995-06-19
WO1994001694A1 (en) 1994-01-20
BR9306508A (en) 1998-09-15
DE69301824D1 (en) 1996-04-18
ES2087748T3 (en) 1996-07-16
RU95105535A (en) 1996-10-27
FR2693570B1 (en) 1994-09-02
EP0648316B1 (en) 1996-03-13
DE69301824T2 (en) 1996-07-25
US5494139A (en) 1996-02-27

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